gpresent - presentations with Groff and AcroRead

gpresent is intended for making presentations with the text processing
and formatting software package groff (GNU Troff).
It consists of a macro package present.tmac for use
with groff and a postprocessor presentps for manipulation of
the PostScript output of groff.
The result has to be converted to PDF (Portable Document Format) after which it
can be presented with the use of AcroRead.